Machine for attaching metal plates



(No Model.)

' WyW. & E. F. PRESTON.

MACHINE FOR ATTAGHING METAL PLATES.

No. 418,341. Patented Dec. 31, 1889.

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N PETERS. Phnlmfilhogrqpher. WadimslmL 0 c UNITED STATES PATENT OFFICE.

\VILLIAM IV. PRESTON AND EDW'ARD F. PRESTON, OF BISMARCK, MICHIGAN, ASSIGNORS TO THE PRESTON ICE ,OREEPER COMPANY, OF CHICAGO, ILLINOIS.

MACHINE FOR ATTACTHING METAL PLATES.

SPECIFICATION forming part of Letters Patent No. 418,341, dated December 31, 1889.

Application filed December 3, 1888. Serial No. 292,579. (No model.)

To all whom it may concern; the plunger D is operated. Arms I) extend Be it known that we, WVILLIAM WV. PRES- out horizontally from the uprights and form TON and EDWARD F. PRESTON, citizens of the bearings or guides for the plunger. After United States, residing at Bismarck, in the each operation the plunger is retracted by county of Eaton and State of Michigan, have the spring d and is prevented from twisting 5 5 invented a new and useful Improvement in or turning on its axis by the pin e, which Machines for Attaching Metal Plates to Rubworks in the slot of the guide E. The lower ber, of which the following is a specification. portion of the plunger carries the nail-holder, The machine forming the subject of this which consists of two converging spring-arms [o invention is specially designed for attaching F, secured at their upper ends to the sleeve ice-creepers and heel-plates to rubber over- G, sliding upon the plunger to the extent shoes by the fastening illustrated at FigurelO permitted by the guide-pin g, secured in the of the accompanying drawings. It may, howplunger and extending through the slot 9' in ever, be used for other kindred purposes. the sleeve. The lower ends of the spring are 15 The machine embodies a holder for posibent toward each other, as shown, and at tioning the washer, adie for turning or clinchtheir meeting extremities are recessed or ing the point of the nail around the bar of countersunk, as at f, so as to receiveand the washer, a plunger for forcing or driving yieldingly hold the nail during the initial the nail, and a nail-holder for properly supportion of the operation. A lifting-spring is 20 porting and positioning the nail preparatory also applied to this nail-holder. It appears at to its being driven, and which may also open J and is confined to the plunger between the and release thevnail at the proper time. All sleeve G and a pin t'. This spring is, howthese parts are fully shown and described in ever, lighter than the plunger-retracting the drawings, in which latterspring, and will be collapsed by the latter 25 Figs. 1 and 2 are elevations of the mawhen the plunger is drawn up to its position chine, the first showing it at rest and the secof rest. The spring J serves to retain the ond-showing it at the time of completing a holder in its upper position until the plunger fastening. The latter view is partly in sechas come in contact with the head of the 'tion. Fig. 3 isan enlarged elevation of the nail, and may move the holder upward until 0 lower end of the plunger, the nail-holder, said contact occurs. It also forces the holder (partly in section and partly broken away,) up as the plunger retracts. and the washer-holder. Figs. A and 5 are The washer-holder is shown at H. It is views showing, respectively, a front and side provided with appropriate means for propelevation of the same parts as Fig. 3, but in erly positioning the washers so they may reg- 3 5 the position occupied at the completion of an ister correctly with the line upon which the operation. Fig. 6 is a plan of the washernail will be driven, and thus be able to reholder and clinching-die. Figs. 7 and 8 are ceive its point. Appropriate devices for this elevations at right angles to each other of purpose are found in the pins h, which set said holder and die. Fig. 9 is a detail of the into the notches m of the washer, employed 4o guide employed with the plunger. Fig. 10 as a part of the fastening and shown at M. 0 shows the fastening which the machine ef- In the center of the holder is the clinchingfects, and Fig. 11 gives a flat or face and an die K, having the cavity 70 for turning or deedge view of the washer which we prefer to fleeting the point of the nail. This die is employ therein. preferably made separate from the washer- 5 Similar letters of reference indicate like holder and is set therein, a depending tang 5 parts throughout the several figures. or shank It being provided for it to hold it In said drawings, A represents the basefirmly in its proper location. A supportingplate of the machine, and B an upright or plate L, having an opening corresponding to standard rising therefrom. To the top of the exterior of the washer-holder, and thus 50 the upright is pivoted the lever 0, whereby adapted to be secured thereon, may be em- Ioo plunger to descend.

ployed to steady the overshoe during the operation of the machine.

The fastening devices consist of the washer M and the nail N. The first of these should have a cross-bar m at or near its center and a recess or opening m at the side of said bar to allow the nail to pass down through the the nail, and assists in centering the same.

The operation of the invention is as follows: The shoe and the creeper or heel-plate to be attached thereto being properly positioned in the machine and a nail being inserted in the nail-holder, as at Figs. 1 and 3, j the lever O is brought down, forcing the The point of the latter contacts with the nail-head, and both plunger and nail-holder descend together until the nail-holder is in proximity to the surface of the shoe. The plunger, however, continues to descend until the nail is driven home, and in so doing compels the spreading of the arms of the nail-holder, as seen at Fig. 5. In the meantime the nail has been driven through the opening in the creeper O,thence through the sole of the rubber P, and thence into the deflecting-cavity of the clinchingdie, by which die its point is bent around the crossbar m of the Washer M, as seen at Figs. 4: and 10.

. WVe disclaim the construction shown in patents to Goddu, No. 250,723; to Bidelman, No. 213,162; to Smith, No. 286,741, and to Bray, No. 199,503.

We claim 1. The nail-holder supported from the plunger and a spring J, acting to raise the nail-holder upon the plunger, in combination with the plunger, substantially as set forth.

2. The combination, with the plunger and its retracting-spring, of the nail-holder having a slotted sleeve and a lifting-spring, substantially as specified.

WILLIAM W. PRESTON.

EDWVARD F. PRESTON.

Witnesses:

II. M. MUNDAY, EDWARD S. EVARTS. 

